Breez SDK Spark 0.27.2

Features & Improvements

• Off-ramp USDC/USDT directly to Cash App
• Partners can now earn fees on USDC/USDT payments
• Token allowances: let apps send tokens on a user's behalf
• Faster MoonPay on-ramp (via USDC on Solana)
• Smaller mobile package

What's Changed

• chore: sync CLI languages with Rust CLI changes by @erdemyerebasmaz in #1165
• Rework Instant & Expedited claim docs by @dangeross in #1166
• Update webhook payload schema by @JssDWt in #1169
• cross-chain: match inbound receives by Spark invoice by @danielgranhao in #1164
• add an SSP daemon by @JssDWt in #1143
• Fall back to other chain services when one is unreachable by @danielgranhao in #1168
• itest: build the operator from an SSP-enabled SO fork by @JssDWt in #1144
• lnurl: serve the verify route under /lnurlp/ by @JssDWt in #1176
• itest: run the tests against a local SSP by @JssDWt in #1145
• sspd: retry unsettled swaps and failed sends within seconds by @JssDWt in #1179
• docs: document the LNURL reverse proxy setup by @JssDWt in #1178
• Document testing against local environment by @JssDWt in #1152
• Stop failed Stable Balance conversions from retrying in a loop by @dangeross in #1170
• Every Stable Balance conversion should end in a terminal state by @dangeross in #1174
• itest flake: survive bitcoind closing idle RPC connections by @JssDWt in #1183
• breez-itest: run the deposit tests that skipped locally by @JssDWt in #1181
• Keep payment sync going when a transfer cannot be mapped by @danielgranhao in #1177
• chore: sync CLI languages with Rust CLI changes by @erdemyerebasmaz in #1184
• Report deposits too small to claim as DepositTooSmall by @danielgranhao in #1180
• Build mobile bindings without the database backends by @danielgranhao in #1188
• Shrink the Flutter native library by @danielgranhao in #1190
• Shrink iOS and Android native binaries by @danielgranhao in #1187
• Use smaller libsecp256k1 tables on iOS and Android by @danielgranhao in #1191
• Enable LTO for the bindings libraries by @roeierez in #1196
• Shrink mobile binaries by @danielgranhao in #1194
• Fix React Native build after the LTO change by @danielgranhao in #1199
• SSP additions by @JssDWt in #1185
• Fix cross-chain receives going unchecked when many are still open by @dangeross in #1189
• Partner fees on USDC/USDT payments by @dangeross in #1186
• Move cross-chain providers into per-provider modules by @dangeross in #1192
• Tag USDC/USDT orders with the partner ID by @dangeross in #1203
• Tweaks to USD Fee text by @dangeross in #1208
• Show deposits while the chain service is unavailable by @danielgranhao in #1201
• Docs: remove the local environment from the guide by @JssDWt in #1213
• Replace nostr-sdk in passkey with a minimal relay client by @danielgranhao in #1202
• Run the itests against Lightspark's current operator by @danielgranhao in #1207
• Token allowance by @roeierez in #1206
• Recover watchtower-exited funds by @JssDWt in #1173
• chore: sync CLI languages with Rust CLI changes by @erdemyerebasmaz in #1220
• Surface non-standard LNURL callback errors by @danielgranhao in #1219
• Fix ReferenceError in Node getPaymentByInvoice by @JssDWt in #1222
• Throw a specific error using cross-chain when not configured by @dangeross in #1212
• wasm js lint by @JssDWt in #1224
• Report a missing database driver only on use by @JssDWt in #1227
• Update recoverable_funds_sats in recover_ apis as well by @JssDWt in #1232
• wasm: map every u128 to BigInt by @danielgranhao in #1226
• itest: wait on a deadline for a leaf's exit status by @JssDWt in #1231
• Tag log entries with the SDK instance that emitted them by @danielgranhao in #1228
• MoonPay delivery via USDC on Solana by @dangeross in #1205
• Sync CLI: ignore pre-existing CI failures and auto-fix new ones by @erdemyerebasmaz in #1237
• chore: sync CLI languages with Rust CLI changes by @erdemyerebasmaz in #1236
• Let the max deposit claim fee scale with the deposit amount by @danielgranhao in #1217
• chore: sync CLI languages with Rust CLI changes by @erdemyerebasmaz in #1238
• Make the unilateral exit quote match the build by @JssDWt in #1234
• Add refund_fee_sats to the recover funds responses by @JssDWt in #1235
• chore: sync CLI languages with Rust CLI changes by @erdemyerebasmaz in #1239
• Handle unknown proto enum values at the prost boundary by @danielgranhao in #1225
• Links SDK errors to a new error-handling guide by @dangeross in #1214
• USDC/USDT to Cash App by @dangeross in #1218
• chore: sync CLI languages with Rust CLI changes by @erdemyerebasmaz in #1240
• docs: explain deposit claim handling in Moving to production by @danielgranhao in #1244
• Self-endorse unallocated Flashnet rewards by @dangeross in #1241
• Make a Boltz poll test deterministic by @JssDWt in #1243
• Support watchtower fee ladders by @danielgranhao in #1209
• Let a fixed max claim fee take a proportional share too by @danielgranhao in #1245
• Surface stuck Orchestra sends in logs and conversion status by @dangeross in #1246
• chore: sync CLI languages with Rust CLI changes by @erdemyerebasmaz in #1248
• Recover zero-timelock leaves the watchtower took on-chain by @danielgranhao in #1249

Full Changelog: 0.26.1...0.27.2